biomedical nanotechnology Articles
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Biomedical applications of organically modified bioconjugated silica nanoparticles
Nanoparticles are one of the most important prominent areas in the field of nanotechnology, with a broad significant role in current life sciences and human healthcare applications. Among the nanoparticles silica nanoparticles are explored in many biological applications because their size dependent novel properties and functions differ drastically from those of the bulk materials. In biomedical ...
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Stabilisation of (3–mercaptopropyl)–trimethoxysilanecapped ZnS nanocrystals in polyacrylamide hydrogel
In this study, we synthesised ZnS nanocrystals and embedded them in polyacrylamide (PAAm) hydrogel to stabilise the fluorescence emission for biomedical applications. ZnS nanoparticles have strong emission but they lose it in time, so generally they are capped with polymers. We capped ZnS nanoparticles with (3–mercaptopropyl)–trimethoxysilane (MPS) and then dispersed them through the PAAm ...
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Nanotechnology in biomedical applications: a review
Incorporation of functionalised and modified nanostructures in various biomedical applications has generated considerable research interest in recent years. The applications of nanotechnology in medicine and biomedical engineering are vast and spans areas such as implant and tissue engineering, diagnosis and therapy. The present scenario demands designing of nanotools which can respond to the ...
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Phase contrast X-ray imaging
In the last decade X-ray imaging based on phase contrast greatly advanced thanks to the use of unmonochromatic synchrotron hard X-rays. The recent advances are going beyond microradiology and microtomography to reach nanometre scale. This paper reviews basic theory and selected applications to biomedical and materials sciences. The forthcoming improvements in phase contrast X-ray imaging will ...
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Biomedical applications of iron oxide nanostructures
Iron oxide nanostructures including nanoparticles and nanorods have been widely used for numerous in vivo and vitro applications such as magnetic resonance imaging contrast enhancement, tissue repair and drug delivery. All these biomedical and bioengineering applications require that these nanostructures have high magnetisation values and size smaller then 100 nm with overall narrow particle size ...
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Functionalised carbon nanotubes: high biocompatibility with lack of toxicity
Recent studies from our laboratories have clearly shown the utility of the carbon nanotubes (CNTs) in biomedical applications. Therefore, the behaviour of CNTs following in vivo administration is of high interest. In this paper, we summarise some of our previously published results towards the assessment of the health impact of CNTs. We will initially describe the in vivo distribution of ...
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Effect of heat treatment of nano-hydroxyapatite coatings prepared using electrohydrodynamic deposition
Electrohydrodynamic spraying has recently emerged as a powerful method of producing nano-structured hydroxyapatite (nHA) coatings for biomedical implants. To enhance the mechanical properties of these coatings, a subsequent heat treatment is normally needed. However, whether this process significantly influences the coated surface morphology and cellular responses still needs to be systematically ...
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Synthesis of high aspect ratio gold nanorods and their effects on human antigen presenting dendritic cells
High aspect ratio (AR) gold nanorods (NRs) attract great interest for biomedical applications due to their novel physicochemical properties. Here, we report a facile method for preparation of high AR gold NRs through a seedless surfactant-mediated protocol with the additive of nitric acid. High-resolution transmission electron microscopy studies showed that the concentration of nitric acid has ...
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